#Sinabung volcano, #Indonesia. Ash 12,000 ft altitude extending west. RED alert continues.

22 #volcanoes in #Indonesia on raised alert.

#Sinabung volcano, #Indonesia. On RED alert for past 3 months.

Sulphur dioxide plume from eruption of #Kelud volcano last week reached #Mozambique, #Africa, 8000 kilometres away.

satellite images show another sulphur dioxide plume mid Indian Ocean. Also probably from major eruption of #Kelut last week.

Easterly winds in Indian Ocean indicate #Kelut volcano possible source for SO2 plume off #Madagascar. #Kelud.

SO2 plume off #Madagascar. Volcanic source #Kelut?, #Karthala? no reports from Piton de la Fournaise.

Large sulphur dioxide plume visible in satellite images off north coast of #Madagascar. Source??

7 fatalities,1,392 people seek medical help, and 3782 houses damaged by eruption of #Kelut volcano, #Indonesia. #Kelud

22 volcanoes in #Indonesia on raised alert.

#Sinabung volcano, #Indonesia. Still at RED alert after 87 days.

Supervolcanic eruptions have a VEI 8. Examples #Yellowstone 640,000 BC, #Toba 74,000 BC, #Taupo 24,500 BC.

Examples of VEI 4 volcanic eruptions. #Kelut 2014, #Eyjafjallajökull 2010, #Galunggung, 1982, #Pelée 1902.

#Kelut eruption 2014 had Volcanic Explosivity Index (VEI) of 4. Ash to 55,000 ft altitude. Eruption was #cataclysmic.

1951 eruption of #Kelut volcano, #Indonesia caused the crater floor to lower by 79 metres. #Kelud.

Photo of lava dome inside crater at #Kelut volcano, #Indonesia during my 2012 visit. #Kelud pic.twitter.com/Q0QDDoogKZ

Previous eruption of #Kelut volcano, #Indonesia in 2007 produced a lava dome which was unusual for the volcano. #Kelud

Typical eruptions at #Kelut volcano are short and violent, and produce pyroclastic flows, and lahars. #Kelud

Eruption of #Kelut volcano in 1901 caused a fall of cinders over one third of Java. A very dangerous volcano. #Kelud

Sulphur dioxide plume from #Kelut volcano, #Indonesia is the largest in the world for many years. #Kelud